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Hasselblad H6D-100C
Hasselblad HC 50mm f/3.5 II

Conundrum: Depth of Field vs Diffraction

The tradeoff between depth of field and diffraction is problematic on a huge sensor.

As discussed in Diffraction: Influence of Pixel Size, there is hard limit for depth of field when diffraction losses are taken into account. With ~4.8 micron pixels, the Hasselblad H6D-100C has the same pixel size as a Nikon D810, for which f/16 is an image quality disaster from diffraction losses*. Having the same pixel size as the Nikon D810, the Hasselblad H6D-100C does equally poorly at f/16 since the Airy Disc vs pixel size is the same. In other words, f/11 is the limit to stopping down on the Hasselblad H6D-100C without rapidly degrading the image, from diffraction.

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f11 @ 1/13 sec, ISO 64; 2018-11-14 16:24:51
Hasselblad H6D-100C + Hasselblad HC 50mm f/3.5 II @ 33mm equiv (50mm)
ENV: Greenstone Lake, exit creek, altitude 10200 ft / 3109 m, 35°F / 1°C
RAW: diffraction mitigating sharpening

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